First you are asked if you want to run/open/start or save this file: click 'Start/Run/Open'.
In Windows 10, a warning may be given that the program isn't a verified app from the Store: click 'Install anyway' (don't worry, it will NOT be installed but only executed once).
Or you may be asked to confirm that you want to run this file: click 'Run'.
Next, the scan program is started and the scan is automatically started, the results are uploaded and the advices are shown.
Perform a scan on your own computer or first try the sample scan to see what kind of data is retrieved and what sort of advices are given.